Electrical Machines In synchronous motor the torque is proportional to Power P P² 1/P 1/P² Power P P² 1/P 1/P² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop induction motor torque. induction generator torque. synchronous motor torque. DC motor torque. induction motor torque. induction generator torque. synchronous motor torque. DC motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 12. 4. 3. 7. 12. 4. 3. 7. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In applied voltage is reduced in a dc shunt motor Full load speed. Full load current. None of these. Full load torque. Full load speed. Full load current. None of these. Full load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For same HP rating and full load speed which of following motor has poor starting torque? Series. Differently compounded. Shunt. Cummulative compound. Series. Differently compounded. Shunt. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC series motor is best suited for electric traction as It develops high starting torque. It runs at very high speed at light load. It consume less power. It is cheaper in cost. It develops high starting torque. It runs at very high speed at light load. It consume less power. It is cheaper in cost. ANSWER DOWNLOAD EXAMIANS APP
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